We propose a cooperative device-to-device (D2D) communications framework in order to
combat the problem of congestion in crowded communication environments. The idea is to …

Cooperative cognitive radio (CCR) is a novel paradigm to improve both radio spectrum
efficiency and communication quality. In this paper, we consider a CCR network (CCRN) …

Cooperative cognitive radio (CCR) is a novel paradigm for improving both radio spectrum
efficiency and communication quality. However, for the CCR networks with energy …

A cooperative cognitive radio scheme exploiting primary signals for energy harvesting is
proposed. The relay sensor node denoted as the secondary transmitter (ST) harvests energy …

By cooperative spectrum sharing schemes, a primary network (PN) leases a part of the
licensed band to a secondary network (SN). A secondary transmitter (ST) acts as a relay for …

In this paper, we have proposed a Cognitive Radio system where primary users uses the
precautionary measures against the possible interferences that may disturb their quality of …

This paper proposes an improved spectrum-sharing protocol for multiuser cooperation in
cognitive radio (CR) networks. In CR networks, a secondary user (SU) can access the …

In the existing literature about cognitive radio opportunistic relaying (CR‐OR) systems, the
first‐order statistics such as outage probability are investigated widely. However, for the …

This paper proposes a Cognitive Radio system where primary users cooperate with the
secondary users by performing the task of data transmission and channel monitoring …

Cooperative device-to-device (D2D) communication is proposed as a promising technology
to improve the spectral efficiency in crowded communication networks. In this paper, we …